Walmart offers the Brother Business Plus All-in-One Inkjet Printer, which also faxes, copies, and scans, for $169.99 with free shipping. (NextWarehouse charges the same price.) That's the lowest price we could find by $50, although most stores charge $250 or more. It prints up to 22 pages per minute, a 3.7" touchscreen LCD, and 802.11n wireless.
There are lots of things Uncle Sam can't touch — so long as you play by the rules.